Phreys



(No Model.)

W. P. HUMPHREYS. JOINT CONNECTION FOR SUGTION PIPES AND PROTECTORS 0FDREDGERS.

No. 433,943. Patented Aug. 12, 1890.

dilarmy mum wasumcrau n c UNITED STATES PATENT OFFICE. V

\VILLIAM PENN HUMPHREYS, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR,

BY MESNE ASSIGNMENTS, TO A. M. STINOEN, OF SAME PLACE.

JOINT-CONNECTION FOR SUCTION-PIPES AND PROTECTORS 0F DREDGERS.

SPECIFICATION forming part of Letters Patent No. 433,943, dated August12, 1890.

Application filed December 9,1889- Serial No. 333,149- (No model.)

To all whom it may concern Be it known that I, WILLIAM PENN HUM- PHREYS,a citizen of the United States, residing at San Francisco, in the countyof San Francisco and State of California, have invented certain new anduseful Improvements in Slip-Joint Connections for Suction-Pipesand'Protectors of Dredgers; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates, generally, to improvements in dredging apparatus,and has particular reference to 'a novel manner of connecting thesuction-pipe to the dredge-boat by a secondary orauxiliary joint orconnection, whereby two connections can be availed of in use-that is,the ordinary universal joint and a separate connection; also, wherebythe strain upon the universal j ointis relieved and the strength isgreatly increased. It has particular adaptability for use with are-enforced suction-pipe, whichI have made the subjectmatter of anapplication for patent filed November 18, 1889, Serial No. 330,677, andin carrying my present invention into practice in connection therewith Icast with or affix to the re-enforce or jacket a projection which slipsupon the boat or scow and permits the movement of the suction-pipe. Asuitable means is employed for confining the projection in itsmovementsas, for instance, a slot in it, through which a' pin with anenlarged head is passedor it may be used with a staple or loop set overthe projection instead of the slot and pin. I may also provide rollersbeneath the projection to facilitate the movetion of the connection tothe boat, showing sponding parts in all-the figures where they occur.

Only so much of the mechanism of the dredger is shown as is necessary toillustrate the use of my present invention.

The manner of manipulating the suctionpipe and operating the cutter canbe seen in my patents of December 10, 1889, No. 417,186.

A is the end of the scow. B is the suction-pipe mounted in the mannerset forth in patent granted to me on the 10th of December, 1889, No.417,186, and of the construction as to jacket shown and claimed inapplication filed NovemberlS, 1889, above referred to.

The re-enforce on the suction -pipe is marked 0.

D is the projection or arm, which is cast with or aifix'ed to thesuction-pipe and extended upon the boat and held in such a manner as tobe capable of slipping or movement to accommodate the movements of thesuction-pipe. For this purpose I may provide a slot in the projection orarm, as shown at d, and pass a pin E with an enlarged head through it,or I may employ a staple or loop F and set it over the arm, as shown inFig. 3, or other means may be adopted for making the slip-joint. The armor projection is preferably hinged in all the forms. This connection maybe applied to the re-enforee form of S5 protector, whether extending allround or only part way round the suction-pipe, or to a suction-pipewithout any protector, or to the jacket form of protector shown in mypatent of December 10, 1889, No. 417,186, as shown 0 in Fig. 5. I mayalso provide rollers G G under the arm or projection to facilitate itsmovement, as shown in Fig. 4. These will preferably be affixed to thedeck of the barge,

but may be casters or rollers upon the arm itself.

Having thus described my invention, whatI claim, and desire tosecure loy Letters Patent, 1s

1. A suction-pipe for dredgers,having a slip 10o joint or connection asan auxiliary means for joint connection to the barge, in combinationconnecting it to the barge, in addition to the with rollers on which thearm or projection ordinary universal joint, as set forth. forming theslip-joint Works, as set forth.

2. A suction-pipe for dredgers, having a In testimonyWhereofIaffixmysignature in 5 protector provided with a slip joint orconnecpresence of two Witnesses.

tion to the barge, as set forth.

3. A re-enforced suction-pipe provided with VILLIAM PENN HUMPHREYS aslip-joint connection to the barge, as set Witnesses: forth. J NO. F.LYoNs,

1o 4. A suction-pipe, having an auxiliary slip- EDWARD T. RUSSELL.

